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A system for preventing overflow in a storage tank which is fillable via a nozzle includes a nozzle receiver configured to fit within a fill passage of a storage tank. The system further includes at least one seal disposed in the nozzle receiver configured to seal the nozzle within the nozzle receiv

A system for preventing overflow in a storage tank which is fillable via a nozzle includes a nozzle receiver configured to fit within a fill passage of a storage tank. The system further includes at least one seal disposed in the nozzle receiver configured to seal the nozzle within the nozzle receiver. The system has a first passage and a second passage. The first passage is configured to fit at least partially within the fill passage of a storage tank and receive at least a portion of a flow of liquid from the nozzle. The second passage is in communication with the first passage. The system also includes a valve having a first position that directs liquid to flow through the first passage and a second position that directs liquid to flow through the second passage.

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1. A system for preventing overflow in a storage tank which is fillable with liquid via a nozzle having an aspirator hole, the system comprising: a fill fitting comprising a mounting flange and a sleeve;a nozzle receiver body;a nozzle receiver disposed within the nozzle receiver body;a seal separati

1. A system for preventing overflow in a storage tank which is fillable with liquid via a nozzle having an aspirator hole, the system comprising: a fill fitting comprising a mounting flange and a sleeve;a nozzle receiver body;a nozzle receiver disposed within the nozzle receiver body;a seal separating and sealing an interface between the nozzle receiver and the sleeve;a nozzle stop;a second seal disposed in the nozzle receiver above the nozzle stop and below the aspirator hole of the nozzle;a lower passage configured to fit at least partially within a fill passage of a storage tank and receive at least a portion of a flow of liquid from the nozzle;an upper passage in communication with the lower passage; anda valve configured to direct the flow of liquid from the nozzle to one of the lower passage and the upper passage. 2. The system of claim 1, wherein when a level of liquid in the storage tank is below a predetermined level, the valve is in a first position and liquid is permitted to flow through the lower passage to the storage tank. 3. The system of claim 2, wherein when a level of liquid in the storage tank is above a predetermined level, the valve is in a second position and at least partially blocks the flow of liquid out of the lower passage. 4. The system of claim 1, wherein the nozzle receiver includes a shutoff reservoir. 5. The system of claim 4, wherein the upper passage is in communication with the shutoff reservoir. 6. The system of claim 4, wherein the second seal is disposed about the shutoff reservoir. 7. The system of claim 1, further comprising a venturi for preventing liquid from entering the upper passage. 8. A system for preventing overflow in a storage tank which is fillable via a nozzle, the system comprising: a fill fitting comprising a mounting flange and a sleeve;a nozzle receiver disposed within a nozzle receiver body and configured to fit within a fill passage of a storage tank;two or more seals disposed in the nozzle receiver and configured to seal nozzles of different sizes within the nozzle receiver;a first passage configured to fit at least partially within the fill passage of a storage tank and receive at least a portion of a flow of liquid from the nozzle;a second passage in communication with the first passage;a valve having a first position that directs liquid to flow through the first passage and a second position that directs liquid to flow through the second passage; anda vent valve body in communication with the nozzle receiver;a tank vent passage having a first end in communication with the valve body and a second end in communication with the storage tank; andan atmospheric vent passage having a first end in communication with the valve body and a second end in communication with an external atmosphere. 9. The system of claim 8, wherein the two or more seals are positioned below an aspirator hole of a nozzle received in the nozzle receiver. 10. The system of claim 8, wherein the valve is a solenoid valve. 11. The system of claim 8, further comprising a venturi disposed between the first passage and the second passage. 12. The system of claim 8, wherein the vent valve body includes at least one check valve configured to prevent liquid from entering the atmospheric vent passage. 13. A system for preventing overflow in a storage tank which is fillable via a nozzle, the system comprising: a fill fitting comprising a mounting flange and a sleeve;a nozzle receiver disposed within a nozzle receiver body;a seal separating and sealing an interface between the nozzle receiver and the sleeve;a shut-off reservoir with a lower portion having multiple diameters, the shut-off reservoir further comprising a second seal and a third seal, the second and third seal having different diameters;a lower passage configured to fit at least partially within a fill passage of a storage tank and receive at least a portion of a flow of liquid from the nozzle, the lower passage being in communication with the storage tank;an upper passage in communication with the lower passage; anda solenoid valve configured to direct the flow of liquid from the nozzle to one of the lower passage and the upper passage. 14. The system of claim 13, wherein the reservoir is in communication with the upper passage. 15. The system of claim 14, wherein when a level of liquid in the storage tank is below a predetermined level, the solenoid valve is in a first position and liquid is directed to flow through the lower passage to the storage tank. 16. The system of claim 15, wherein when a level of liquid in the storage tank is above a predetermined level, the solenoid valve is in a second position and liquid is directed to flow through the upper passage to the reservoir in the nozzle receiver.